California  |  Banking Law

My grandpa has saved about $150,000 CASH in his safe in the house. He wants to give me all those money. I am currently in college with no job and no income. If i deposite that large amount of cash to the bank and then use it for investment later on, i am afraid the Federal, IRS or whatever government agency may go after me. I would like to know if there is anyway i can deposite those money without bringing attention to those agencies? thanks.

Bob.